Blog

When to Plant Medlar in Cobb County, GA

Cobb County, Georgia Zone 8a May

Your May game plan for Cobb County, Georgia

Your garden in Cobb County, Georgia is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 31
Avg. first frost November 1
Soil temp (4") 67°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs

Instant PDF download. No spam, unsubscribe any time.

Medlar is a small ornamental tree producing unusual open-ended fruits that must be bletted (softened by frost) before eating. The flavor is complex, like spiced apple butter.

Cobb County, Georgia is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 1, giving you a growing season of approximately 215 days.

At an elevation of 387 feet, Cobb County receives approximately 57.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, providing good warmth for Medlar during the growing season. Clay soil retains moisture well for Medlar, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Medlar root diseases.

Cobb County, GA (Zone 8a) Long season
215 days
Last Spring Frost March 31
215 growing days
First Fall Frost November 1

Cobb County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 13
Recommended (50%) ✓ Fits season
Transplant: Apr 21
Safe Start (90%) ✓ Fits season
Transplant: May 8

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Cobb County

How your county's soil matches Medlar's growing requirements.

Soil pH

Your soil pH (5.3–6.5) is more acidic than Medlar prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Cobb County is excellent for Medlar — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Medlar.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Medlar.

How to Plant Medlar

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Medlar

Medlar needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Medlar Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.3" 6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.7" 0" ✅ Rainfall sufficient
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 5.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4.3" 0" ✅ Rainfall sufficient
Dec 5.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Cobb County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Medlar Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Medlar needs ~24,455 GDD — county provides 3,601 GDD May not mature

Medlar Planting Timeline — Cobb County, GA

Medlar Planting Calendar

Activity When Date Range
Transplant Outdoors April 21 Apr 21 – May 5

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

1095–1825 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

215 days in Cobb County

Growing Tips for Medlar in Cobb County

Direct sow Medlar outdoors after March 31 in Cobb County when soil has warmed and frost danger has passed.

With Cobb County's clay soil (26% clay), work in 3-4 inches of compost before planting Medlar. Avoid tilling when soil is wet to prevent compaction.

Your 215.0-day growing season in Cobb County is tight for Medlar (1095.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in well-drained soil. Medlars are self-fertile and need minimal pruning. Harvest after the first frost and allow to soften (blet) indoors for 2-3 weeks before eating.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Medlar in Cobb County, GA?

Cobb County is in Zone 8a with an average last frost of March 31. Plan your Medlar planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cobb County, GA?

Cobb County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 1.

🌱

Your Cobb County Garden Planner — Free

A 24-page printable planner built for Cobb County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Cobb County, GA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.